HP AdvanceStack Hub-8U J2610B Hardware Installation And Reference Manual page 31

LED patterns indicating problems
Power Collision AUI/Xcvr
Port
ON Appears *
solidly
ON
ON * *
ON * Slow
Flash
ON * *
* This LED is not important for the diagnosis.
Twisted-Pair
Port
Very frequent collisions are occurring, which
*
could indicate a network fault or improperly
terminated cable.
A transceiver attached to the AUI port may not
have the SQE test disabled. For information
about the SQE test, see your documentation
accompanying your transceiver module.
If you have an HP AdvanceStack 8U/16U
SNMP Module installed, see the manual for
the module.
The port has been auto-partitioned because of
Slow
an excessive collision condition. Check cable
Flash
connections and status of attached network
devices for causes of the excess collisions.
The transceiver port has been
*
auto-partitioned because of too many
collisions. Check cable terminations,
connections, SQE setting on any external
transceivers, and status of attached network
devices for causes of the excess collisions.
The hub has failed its self-test. Power-cycle
After self-
the hub. If this condition persists, call your
test, all ports
HP-authorized LAN dealer or HP
are ON for an
representative for assistance.
extended
period of time.
Troubleshooting
Diagnostic Tips
2-5